CN201716379U - Tester used for high-voltage electroscopic pen - Google Patents
Tester used for high-voltage electroscopic pen Download PDFInfo
- Publication number
- CN201716379U CN201716379U CN2010202238346U CN201020223834U CN201716379U CN 201716379 U CN201716379 U CN 201716379U CN 2010202238346 U CN2010202238346 U CN 2010202238346U CN 201020223834 U CN201020223834 U CN 201020223834U CN 201716379 U CN201716379 U CN 201716379U
- Authority
- CN
- China
- Prior art keywords
- transformer
- primary coil
- tester
- high voltage
- pen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a tester used for a high-voltage electroscopic pen, belonging to the technical field of an electric tester. The tester comprises a DC power supply and an oscillation booster circuit that are arranged in a portable appliance, wherein the oscillation booster circuit comprises an NPN triode, a capacitor and a booster transformer; the output end of the DC power supply is connected with one end of a primary coil of the booster transformer; the other end of the primary coil of the booster transformer is connected with the collector electrode of the NPN triode; the primary coil of the booster transformer is provided with a tap that is electrically connected with the base electrode of the NPN triode; the emitting electrode of the NPN triode is grounded; and one end of the primary coil of the booster transformer serves as a contact of the high-voltage electroscopic pen, and the other end thereof is grounded. The tester obtains an instantaneous oscillation signal, then directly obtains an instantaneous high-voltage output signal and can complete the test for the high-voltage electroscopic pen by virtue of the instantaneous high-voltage output signal. As the circuit is simplified and is convenient to carry, the tester can realize the convenient and effective electrometry for the existing high-voltage electroscopic pen.
Description
Technical field
The utility model relates to a kind of utensil that is used for the testing high voltage electroscope, belongs to electric test instrument technical field.
Background technology
Along with the high voltage electric equipment improvement of Manufacturing Technology, simultaneously because the soil is more and more precious, increasing transformer station has selected all when designing that floor area is few, the high complete locking device enclosed type electrical equipment device of integrated level for use.The major advantage of these complete locking devices is the floor areas that greatly reduced transformer and distribution station, has effectively utilized all kinds of resources, and Gong Dian security, reliability also are greatly improved simultaneously.But its shortcoming is to have brought greatly inconvenience at work to operation personnel and repair and maintenance personnel.In addition, in order to improve outdoor aerial line powering reliability, bare wire originally almost is insulated lead and power cable replaces.
Regulation according to the 70th of national Ministry of Water Resources and Power Industry " electric power safety working regulation ": need electrical verification, discharge, ground connection when overhaul of the equipments or periodical repair, and before the electrical verification, should be earlier test on the electric equipment having, the conclusive evidence electroscope is good.Yet, on existing totally enclosed type electrical equipment device, GIS and insulated conductor and power cable, can't test electroscope.Known to the inventor, still lack the utensil that is specifically designed to the testing high voltage electroscope in the real work at present.
The utility model content
The technical problems to be solved in the utility model is to propose a kind of special implement of the electroscope of testing high voltage easily and effectively.
The technical solution of the utility model is: a kind of high voltage testing pen tester, comprise the direct supply and the oscillation step-up circuit that are arranged in the portable utensil, described oscillation step-up circuit contains NPN triode, electric capacity and step-up transformer, the output terminal of described direct supply connects an end of the primary coil of step-up transformer, the other end of the primary coil of described step-up transformer connects the NPN transistor collector, the primary coil of described step-up transformer is provided with the tap that connects the NPN transistor base through electric capacity, the grounded emitter of described NPN triode; One end of the secondary coil of described step-up transformer is as the contact of high voltage testing pen, its other end ground connection.
During use, earlier the test lead of high voltage testing pen is aimed at an end of the secondary coil of step-up transformer, open direct supply, the direct current of output is through the primary coil of step-up transformer, because the tap output current signal of the primary coil of step-up transformer is given transistor base through electric capacity, therefore the primary coil of step-up transformer a section from its tap to its other end constitutes oscillation circuit and forms instantaneous self-sustained oscillation current signal with electric capacity, and this current oscillation signal outputs to transistor base and makes the triode conducting, thereby the primary coil at step-up transformer forms the transient pulse voltage signal, this transient pulse voltage signal directly produces the instantaneous high pressure voltage signal at the secondary coil of step-up transformer, observe the high voltage testing pen this moment, can whether produce the quality that the high voltage testing pen is confirmed in reaction such as luminous according to the high voltage testing pen.The number of turn of the primary and secondary coil of step-up transformer can require according to the voltage tester of high voltage testing pen to select.
High voltage testing pen of the present utility model passes through to transform general transformer oscillatory circuit with tester, ignoring frequency selection network does not ask generation steady oscillation signal only need obtain the ringing signal, and the selection by the primary and secondary coil of transformer, directly obtain instantaneous high pressure voltage output signal, and finish test the high voltage testing pen with this instantaneous high pressure voltage output signal at the transformer output terminal.Because circuit reduction is easy to carry in addition, therefore high voltage testing pen of the present utility model has solved the problem that existing high voltage testing pen can't carry out electrical verification easily and effectively with tester, and the Testing apparatus of the simple and easy special use of a kind of high voltage testing pen is provided for numerous electricians.
Improvement of the technical scheme is: described step-up transformer is a line output transformer.
The one of perfect of technique scheme is: described direct supply is battery or DC power supply circuit.
Perfect two of technique scheme is: described direct supply is battery and DC power supply circuit.
Further improving of technique scheme is: described DC power supply circuit contains power transformer, rectifier, filter capacitor and voltage stabilizer; The primary coil of described power transformer connects city's power supply; The one end serial connection rectifier and the voltage stabilizer of the secondary coil of described power transformer, its other end ground connection; The parallel connection of secondary windings of described filter capacitor and power transformer, the output terminal of described voltage stabilizer connects an end of the primary coil of step-up transformer.
Further improving again of technique scheme is: the primary coil of described power transformer and the primary coil of step-up transformer also are serially connected with fuse, described electric capacity also is parallel with the resistance parallel-series current-limiting resistance, is provided with switch between primary coil one end of the output terminal connection step-up transformer of described direct supply.
Description of drawings
Below in conjunction with accompanying drawing high voltage testing pen of the present utility model is described further with tester.
Fig. 1 is the circuit theory diagrams of the utility model embodiment high voltage testing pen with tester.
Embodiment
Embodiment
The high voltage testing pen of present embodiment comprises the direct supply and the oscillation step-up circuit that are arranged in the portable utensil with tester as shown in Figure 1.Oscillation step-up circuit contains NPN triode 15, electric capacity 14 and step-up transformer 16.
Aspect direct supply, adopt the external conventional 220V electric main of DC power supply circuit source, consider convenience simultaneously, also selected 12V small dry battery (inserting) in addition for use, also can select other batteries for use by 7 and 8 terminals in the work of the place of outdoor and AC-less power.DC power supply circuit contains power transformer 3, rectifier 4, filter capacitor 5 and voltage stabilizer 6.The primary coil of power transformer 3 connects 220V city power supply, the end serial connection rectifier 4 and the voltage stabilizer 6 of the secondary coil of power transformer 3, the other end ground connection of the secondary coil of power transformer 3.The parallel connection of secondary windings of filter capacitor 5 and power transformer 3, voltage stabilizer 6 adopts 7812 integrated packages, and the output terminal of voltage stabilizer 6 and dry cell (being the output terminal of direct supply) is connected an end of the primary coil of step-up transformer 16.The primary coil of the primary coil of power transformer 3 and step-up transformer 16 also is serially connected with fuse 10 respectively, the input of alternating current 220V power supply is through fuse 10 (220V AC side fuse) to power transformer 3, reduce to interchange 12V voltage through power transformer 3, after commutator tube 4 rectifications and filter capacitor 5 filtering, in the input voltage stabilizer 6, give the primary coil of step-up transformer 16 from the stable 12V direct-current working volts of voltage stabilizer 6 outputs again.Be provided with switch 9 (can save) between primary coil one end of the output terminal of voltage stabilizer 6 and dry cell (being the output terminal of direct supply) connection step-up transformer 16.
The other end of the primary coil of step-up transformer 16 connects NPN triode 15 collectors, and the primary coil of step-up transformer 16 is provided with the tap that connects NPN triode 15 base stages through electric capacity 14, the grounded emitter of NPN triode 15.One end 17 of the secondary coil of step-up transformer 16 is as the contact of high voltage testing pen, the other end ground connection of the secondary coil of step-up transformer 16.
Step-up transformer adopts line output transformer (being high voltage package), also can select other step-up transformers for use.Electric capacity 14 also is parallel with resistance 11,12 parallel-seriess current-limiting resistance 13.
The high voltage testing pen of the present embodiment use step of tester:
1, self check:,, press switch 9 with an end 17 approaching arbitrary metallic objects of step-up transformer 16 secondary coils with terminal 1,2 incoming transport power supply 220V (or terminal 7,8 directly inserts dry cell 12V).If between terminal 17 and metallic object, electric discharge phenomena occur, illustrate that then the high voltage testing pen of present embodiment is intact with tester.
2, test: the test lead of tested electroscope is aimed at an end 17 of step-up transformer 16 secondary coils, press switch 9, can test, test process does not repeat them here as described above.If the tested electroprobe is luminous, sounding or the rotation then represent that this electroscope is intact.Otherwise, represent that then electroscope damages.
Obviously, present embodiment high voltage testing pen with the variation of the direct supply existence of tester is: 1) direct supply only adopts dry cell; 2) direct supply only adopts DC power supply circuit; 3) direct supply adopts dry cell and DC power supply circuit simultaneously; 4) DC power supply circuit also can be other versions; 5) resistance 11,12 and current-limiting resistance 13 can save.
High voltage testing pen of the present utility model is not limited to the various embodiments described above with tester, and all employings are equal to replaces the technical scheme that forms, and all drops on the protection domain of the utility model requirement.
Claims (6)
1. high voltage testing pen tester, comprise the direct supply and the oscillation step-up circuit that are arranged in the portable utensil, it is characterized in that: described oscillation step-up circuit contains NPN triode, electric capacity and step-up transformer, the output terminal of described direct supply connects an end of the primary coil of step-up transformer, the other end of the primary coil of described step-up transformer connects the NPN transistor collector, the primary coil of described step-up transformer is provided with the tap that connects the NPN transistor base through electric capacity, the grounded emitter of described NPN triode; One end of the secondary coil of described step-up transformer is as the contact of high voltage testing pen, its other end ground connection.
2. according to the described high voltage testing pen of claim 1 tester, it is characterized in that: described step-up transformer is a line output transformer.
3. according to the described high voltage testing pen of claim 2 tester, it is characterized in that: described direct supply is battery or DC power supply circuit.
4. according to the described high voltage testing pen of claim 2 tester, it is characterized in that: described direct supply is battery and DC power supply circuit.
5. according to claim 3 or 4 described high voltage testing pen testers, it is characterized in that: described DC power supply circuit contains power transformer, rectifier, filter capacitor and voltage stabilizer; The primary coil of described power transformer connects city's power supply; The one end serial connection rectifier and the voltage stabilizer of the secondary coil of described power transformer, its other end ground connection; The parallel connection of secondary windings of described filter capacitor and power transformer, the output terminal of described voltage stabilizer connects an end of the primary coil of step-up transformer.
6. according to the described high voltage testing pen of claim 5 tester, it is characterized in that: the primary coil of described power transformer and the primary coil of step-up transformer also are serially connected with fuse, described electric capacity also is parallel with the resistance parallel-series current-limiting resistance, is provided with switch between primary coil one end of the output terminal connection step-up transformer of described direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202238346U CN201716379U (en) | 2010-06-12 | 2010-06-12 | Tester used for high-voltage electroscopic pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202238346U CN201716379U (en) | 2010-06-12 | 2010-06-12 | Tester used for high-voltage electroscopic pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201716379U true CN201716379U (en) | 2011-01-19 |
Family
ID=43462385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202238346U Expired - Fee Related CN201716379U (en) | 2010-06-12 | 2010-06-12 | Tester used for high-voltage electroscopic pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201716379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901097A (en) * | 2019-04-17 | 2019-06-18 | 贵州电网有限责任公司 | A kind of Portable, personal ac high-voltage simulator |
| CN109917319A (en) * | 2019-04-17 | 2019-06-21 | 贵州电网有限责任公司 | A kind of Portable, personal high direct voltage simulator |
| CN115208227A (en) * | 2022-07-26 | 2022-10-18 | 山东大学 | High voltage generating circuit, cleaning system and method suitable for ionosphere satellite load |
-
2010
- 2010-06-12 CN CN2010202238346U patent/CN201716379U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901097A (en) * | 2019-04-17 | 2019-06-18 | 贵州电网有限责任公司 | A kind of Portable, personal ac high-voltage simulator |
| CN109917319A (en) * | 2019-04-17 | 2019-06-21 | 贵州电网有限责任公司 | A kind of Portable, personal high direct voltage simulator |
| CN115208227A (en) * | 2022-07-26 | 2022-10-18 | 山东大学 | High voltage generating circuit, cleaning system and method suitable for ionosphere satellite load |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201352251Y (en) | Impact test device of high voltage direct current (HVDC) power transmission converter valve | |
| CN103969527A (en) | Charge-discharge service life detection device of high-voltage ceramic capacitor | |
| CN207851140U (en) | Integrated DC electroscope | |
| CN203491485U (en) | Secondary circuit wiring terminal strip short-circuiting plug for power plant or transformer station | |
| CN109462053A (en) | A kind of novel grounded line apparatus for aerial insulated wire | |
| CN201681138U (en) | Lightweight type generator power-frequency alternating-current withstand voltage tester | |
| CN105606951A (en) | Method and device for measuring polarity of capacitor voltage transformer by using self-excitation method | |
| CN201716379U (en) | Tester used for high-voltage electroscopic pen | |
| CN105182173B (en) | Novel composite mutual inductor polarity tester | |
| CN202075333U (en) | Surge current tester | |
| CN201273932Y (en) | AC withstand voltage tester | |
| CN203365531U (en) | Novel alternating-current and direct-current high-voltage electroscope | |
| CN203630241U (en) | All-in-one device for testing power frequency parameters and switching test line for high-voltage power transmission line | |
| CN101661090A (en) | Through-flow tester of neutral point current transformer of transformer | |
| CN202583830U (en) | Feasibility test system for replacement of converter transformer sleeve | |
| CN201917636U (en) | Voltage resistance testing device for rectifier transformer | |
| CN204103198U (en) | Locomotive air conditioning device test short connector | |
| CN204228882U (en) | A kind of winding polarity test checking apparatus of electric power mutual-inductor | |
| CN203057004U (en) | Power supply converter capable of raising electric product power factor | |
| CN201828641U (en) | Portable and integral alternating-current/direct-current tester for high-voltage motor | |
| CN203386040U (en) | A power supply time sequence controller | |
| CN112506731A (en) | Design method of power distribution switch simulation interface device | |
| CN202600032U (en) | All-loop electroscope | |
| CN205091452U (en) | Portable tester of arrester counter | |
| CN204515114U (en) | A kind of portable high-pressure electrification display test unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20180612 |